I've always done it, and now that emoji (or emoticons) have become ubiquitous, there is even an Emojipedia page. That way, anybody who wants to find out the true meaning of that weird emoticon he or she received from a so-called friend, well, there it is.
And just this morning I learned about Japanese emojis, such as the shrug, also known as a kaomoji, because it's based on some Japanese characters. Here it is: ¯\_(ツ)_/¯ and I find it interesting that it's taken off the way it has partly because (taken from The Atlantic):
The meaning of the “the shruggie” is always two, if not three- or four fold. ¯\_(ツ)_/¯ represents nihilism, “bemused resignation,” and “a Zen-like tool to accept the chaos of universe.” It is Sisyphus in unicode.The world is definitely changing, isn't it? I am certainly having fun with these new communication tools, and learning stuff to boot!